Use this classic material as an exciting and effective teaching tool to help students learn about plant and animal cells. Students will trace and color illustrations of plant and animal cells, then watch in amazement as their creations magically shrink down to 1/3 their original size when heated in a toaster oven (adult supervision required). The incredible shrunken “cells” can be used as key chains, zipper pulls, or anything else your students can imagine. Includes enough materials to make 30 cells, diagrams, detailed instructions, and teacher notes. For 30 students. WARNING: Choking Hazard. Small Parts. Not for children under 3 yrs.